To ensure proper fit of the solar filter you must measure the outside diameter of the front opening of the telescope, binoculars or lens. To convert measurements in inches to metric, multiply your measurement that is in inches by 25.4. For example, a dewcap that is 6.25" outside diameter will be 159 mm (6.25 x 25.4 = 158.75mm)

Visual Solar Filter with Solar Finder, (Fits 80mm to 95mm tube) (75mm filter aperture) NEW! Solar Filters with built in sun finder! . The filter material itself is the famous BAADER AstroSolar Film. This film has set a new standard for white...

Visual Solar Filter with Solar Finder, (Fits 90mm to 12mm tube) (80mm filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder target...

Visual Solar Filter with Solar Finder, (Fits 113mm to 143mm tube) (110 filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...

Visual Solar Filter with Solar Finder, (Fits 150mm to 180mm tube) (130mm filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder target...

Visual Solar Filter with Solar Finder, (Fits 165mm to 195mm tube) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder target is visible from both...

Visual Solar Filter with Solar Finder, (Fits 220mm to 250mm tube) (8 inch filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...

Visual Solar Filter with Solar Finder, (Fits 245mm to 275mm tube) (9.25 inch filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...

Visual Solar Filter with Solar Finder, (Fits 275mm to 305mm tube) (10 inch filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...

Visual Solar Filter with Solar Finder, (Fits 305mm to 335mm tube) (11 inch filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...

Visual Solar Filter with Solar Finder, (Fits 320mm to 350mm tube) (12 inch filter aperture) NEW! Solar Filters with built in sun finder! Our new design has a built in sun finder making centering the sun in your eyepiece very easy. The finder...